Triple valve protector



Nov. 24, 1931. L. AQUIAR Y RIVERO 1,833,796

TRIPLE VALVE PROTECTOR Filed Oct. 31, 1950 ATTORNEY Patented Nov. 24, 1931 UNITED 7 STATES LINO AQU.AJR y nivr1w, or msosnnr. MONTE, HABANA, CUBA t TRIPLE VALVI; Pito'iiio'ron Y Application filed October 3 1, 1930, Serial Ilo. 492,581, and in Cuba Ju 1y 1 930,

latter being especially prevalent in tropical and semi-tropical countries) yet allow for free opening of the exhaust port for the passage of air. 7

Another object of the invention is the pro:

r 15 vision of a device of the above Character,

which is simple and economical in construction, reliable and efiicient in use, and may be readly attached.

With the above and other objects in view, the invention further includes the following novel features and details of construction, to be hereinafter more fully described, illustrated in the accompanying drawings and pointed out in the appended claims.

In the drawings: Figure 1 isa fragmentary elevation showing a portion of a triple valve with the invention applied. Figure 2 is an elevation of the invention per se.

Figure 3 is a similar viewwith the valve member or cap open.

Figure 4 is a longitudinal sectional view illustrating the manner of attaching the protector.

Figure 5 is a section on the line 55 of Figure 2. r

Referring to the drawings in detail wherein like characters of reference denote correspending parts, the reference character .10

7 indicates a portion of the casing of a triple valvesuch as is used in the air brake sys- 7 tems of railway cars. This valve casing is provided with an exhaust port 11, which is opento the atmosphere and through which dirt, dust and insects may pass into the valve casing and interfere with the proper. opera tion of the valve. V f

The present invention overcomes this and other disadvantages by providinga protector fox{ the exhaust port. This protector in the nature of .an auxiliary valve 12 Which includes: a, casmg 13 having a central longitudinal" opening '14extending therethrough.

In addition, the casing 13 is provided with 5' openings 15 which are arranged parallel with 7 the opening 14 and which also extend through the casing 13. The inner ends ofthe openings 14 and 15 are in communication with the exhaust port 11 and their outer ends are normally closed by a valve member or cap 16. This cap is carried by a rod or st'em 17- which is movable longitdinally of the central opening 14 and this opening is counterbored or enlarged as at 18 toaccommodate 05 a coiled spring 19. One end;of this spring engages an annular shoulder or seat 20 at the inner end of the enlarged portion 18 of the opening 14 and the Outer end, of this spring bears against a cap 21 which is thread: edly mounted on the endof the rodor stem 17. Normally, the parts occupy the posi' tion shown in Figure 4 of thedrawings and in this position all foreign matter is preventedfrom entering the triple valve through the port 11. The spring 19 is of just sufiicient tension to keep the valve member oro cap 16 seated, so that when the triple valve is unseating, air may pass freely through the opening 15 and unseat the valve member or cap 16 so Lasto permit of free exhaust, The.invention is susceptible of various changes gin its form, proportions and minor details of construction and the right is herein reserved to make such changes as properly fall within the scope of the appended claims.

Having described the invention whatis claimed is y 1. In combination with the triple valve of an air brake apparatus, a spring influenced and commnicating with the exhaust'port of the latter, said auxiliary valve comprising a Casmg having 1ts 1nner endsecured.w1th1n A said exhaust port and open at its onter end, a disk normally closing the 0nter end of the auxiliary valve casing, and means to yield-' ingly hold the disk in closed position.

3. In combination with the triple Valve of an air brake apparatus, a normally closed auxiliary valve carried by the triple valve, said auxiliary valve comprising a casing hav ing a plurality of longitudinally disp0sed openings therethrough with their inner ends communicating With the exhaust, port of the;

triple valve, a cap extending over the outer ends of said openings, a rod extending through one opening and having its uter end secured to the cap, and spring means to yieldingly hold the cap in position to close the opening.

' In testimony Whereof I aflix my signature.

LINO AQUIAR Y RIVERO. 7 

